Table 2: Results of sediment analyses conducted in April 2001, December 2001, and June 2002.

DateStationTotal nitrogen %Ammoniacal-nitrogen mg kg−1Nitrite-nitrogen mg kg−1Nitrate-nitrogen mg kg−1Total phosphorus mg kg−1Available phosphorus mg kg−1Total organic carbon %AVS-S mg kg−1

April 2001ST10.2759.80.043.4145.35.172.5225.0
ST20.301120.064.2044.618.12.7077.3
ST30.0263.40.165.7455.310.31.1877.8
ST40.0447.00.043.2586.98.790.97214

December 2001ST10.2741.80.236.5552.18.132.08257
ST20.3191.90.338.3680.427.22.36213
ST30.251460.152.7444.818.92.03146
ST40.2642.10.152.4688.710.42.0292.1

June 2002ST10.1424.80.034.5331.06.641.4930.5
ST20.20 25.90.005.1135.79.572.0651.4
ST30.1216.20.033.6816.213.81.4757.7
ST40.1520.60.112.7730.22.171.97134